WowAce

Pop a chatframe warning about guild battle standard when boss health reaches 30%

Allows for gold tracking across multiple time frames

Raid assignments planner

Reputation tweaking module for TweakHub with auto watched faction selection and detailed rep info updates.

Calculates the relative value of attributes towards physical dps.

Keeps an eye on someone's distance from you, and alerts you if they get too far.

CatPoints

Joins the LFG channel automatically.

Shows the duration of the most recent (or current) combat

Adds Blizzard, oRA2, oRA3, CT_RA MainTank or Dungeon Finder Tank icon (shield or MT, 1, 2 ... 10) or text (MT or MT1, MT2 ......

Raid Inviter

oUF layout looking like ag_Unitframes and Grid.

A simple addon that warns you if your pet isn't attacking while you're in combat.

A Latency Data Broker plugin.

Automagically call who should cross over

This addon helps us track Renewing Mist and Uplift for Mistweavers.

Automatically switches Profiles of addons when changing spec

See all incoming casts on your target. Also includes resurrection monitor. Uses libhealcomm-3.0 and librescomm-1.0

Gnomish math at its best!

Draws 3D portraits for main units that can be moved or resized at will.